.reading-list-button {
    background-color: #9b59b6 !important; /* Purple */
    color: #fff !important;
    margin-left: 12px;
}
.reading-list-button:hover {
    background-color: #8e44ad !important; /* Darker Purple */
    color: #fff !important;
}

/* Improve mobile navigation layout */
nav.navigation a {
    display: inline-block;
}

@media (max-width: 700px) {
    nav.navigation a {
        margin-bottom: 5px;
    }
}